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Unformatted text preview: (b) Find the potential energy (kJ) of the airplane. (c) What will be the final velocity (m/s) of the airplane if the kinetic energy is increased by 10,000 kJ without any change in elevation? SP5: 1 kg of air expands at constant temperature of 27 C in a piston-cylinder device when its specific volume changes from 0.05 m 3 /kg to 0.1 m 3 /kg. Assume that air satisfies the relation, Pv = RT, where R = 0.287 kJ/kg-K. (a) Determine the quasi-equilibrium work done (kJ/kg) during the process. (b) What is the total work done (kJ/kg) assuming a frictional force of 5000 N acts through 0.25 m during the piston motion? (c) Is the work done to overcome the frictional force quasi-equilibrium? Explain....
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This note was uploaded on 12/11/2011 for the course ME 200 taught by Professor Gal during the Fall '08 term at Purdue University-West Lafayette.
- Fall '08